MOTG-WiFi-ESP
MOTG-MP3
MOTG-RS232
MOTG-RS485
MOTG-BLUETOOTH
gen4-MOTG-AC1
gen4-MOTG-AC2
gen4-MOTG-AC3
MOTG-BREADTOOTH
WWW.4DSYSTEMS.COM.AU
MOTG Modules On The Go Series
DATASHEET
DOCUMENT DATE: 06th March 2019
DOCUMENT REVISION: 1.2
Uncontrolled Copy when printed or downloaded.
Please refer to the 4D Systems website for the latest
Revision of this document
Table of Contents
MOTG Page 2 of 73 www.4dsystems.com.au
Table of Contents
MOTG Introduction ..............................................................................................................5
Universal MOTG Interface (UMI) ..........................................................................................5
Pin Description ............................................................................................................................... 5
Board Dimension............................................................................................................................ 6
Hardware Support ...............................................................................................................6
MOTG - BREADTOOTH ................................................................................................................... 6
gen4-MOTG-AC1 ............................................................................................................................ 7
gen4-MOTG-AC2 ............................................................................................................................ 7
gen4-MOTG-AC3 ............................................................................................................................ 7
Software Support .................................................................................................................8
1. MOTG – WiFi - ESP ...........................................................................................................8
1.1. Description .............................................................................................................................. 8
1.2. Features .................................................................................................................................. 8
1.3. Before Getting Started ............................................................................................................ 8
1.4. Chipset Features ..................................................................................................................... 9
1.5. Pins, Buttons and Solder Bridges ............................................................................................ 9
1.6. Firmware Programming .......................................................................................................... 10
1.7. Mechanical Views ................................................................................................................... 13
1.8. Schematic Details .................................................................................................................... 14
1.9. Specifications .......................................................................................................................... 15
1.10. Hardware Revision History .................................................................................................... 16
1.11. Datasheet Revision History ................................................................................................... 16
2. MOTG-MP3 .................................................................................................................... 17
2.1. Description .............................................................................................................................. 17
2.2. Features .................................................................................................................................. 17
2.3. Before Getting Started ............................................................................................................ 17
2.4. Pin and Solder Bridges ............................................................................................................ 18
2.5. Serial Commands .................................................................................................................... 19
2.6. Media – micro-SD card ............................................................................................................ 22
2.7. File & Folder Structure ............................................................................................................ 22
2.8. Mechanical Views ................................................................................................................... 23
2.9. Schematic Details .................................................................................................................... 24
2.10. Specifications ........................................................................................................................ 25
2.11. Hardware Revision History .................................................................................................... 26
2.12. Datasheet Revision History ................................................................................................... 26
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3. MOTG-RS232 ................................................................................................................. 27
3.1. Description .............................................................................................................................. 27
3.2. Features .................................................................................................................................. 27
3.3. Before Getting Started ............................................................................................................ 27
3.4. Chipset Features ..................................................................................................................... 27
3.5. Pins and Solder Bridges ........................................................................................................... 28
3.6. Mechanical Views ................................................................................................................... 29
3.7. Mechanical Views ................................................................................................................... 30
3.8. Specifications .......................................................................................................................... 31
3.9. Hardware Revision History ...................................................................................................... 32
3.10. Datasheet Revision History ................................................................................................... 32
4. MOTG-RS485 ................................................................................................................. 33
4.1. Description .............................................................................................................................. 33
4.2. Features .................................................................................................................................. 33
4.3. Before Getting Started ............................................................................................................ 33
4.4. Chipset Features ..................................................................................................................... 33
4.5. Pins and Solder Bridges ........................................................................................................... 34
4.6. Mechanical Views ................................................................................................................... 35
4.7. Schematic Details .................................................................................................................... 36
4.8. Specifications .......................................................................................................................... 37
4.9. Hardware Revision History ...................................................................................................... 38
4.10. Datasheet Revision History ................................................................................................... 38
5. MOTG-BLUETOOTH ........................................................................................................ 39
5.1. Description .............................................................................................................................. 39
5.2. Features .................................................................................................................................. 39
5.3. Before Getting Started ............................................................................................................ 39
5.4. Chipset Features ..................................................................................................................... 39
5.5. Pins and Solder Bridges ........................................................................................................... 40
5.6. Firmware Programming .......................................................................................................... 41
5.7. Mechanical Views ................................................................................................................... 47
5.8. Schematic Details .................................................................................................................... 48
5.9. Specifications .......................................................................................................................... 49
5.10. Hardware Revision History .................................................................................................... 50
5.11. Datasheet Revision History ................................................................................................... 50
6. gen4-MOTG-AC1 ............................................................................................................ 51
6.1. Description .............................................................................................................................. 51
6.2. Hardware Overview ................................................................................................................ 51
6.3. Pin Description ........................................................................................................................ 51
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6.4. Accessing pins of MOTG via gen4-PA ...................................................................................... 52
6.5. Mechanical Views ................................................................................................................... 53
6.6. Schematic Details .................................................................................................................... 54
6.7. Hardware Revision History ...................................................................................................... 55
6.8. Datasheet Revision History ..................................................................................................... 55
7. gen4–MOTG–AC2 ........................................................................................................... 56
7.1. Description .............................................................................................................................. 56
7.2. Hardware Overview ................................................................................................................ 56
7.3. Pin Description ........................................................................................................................ 56
7.4. Communication ....................................................................................................................... 57
7.5. Accessing MOTG pins via gen4-PA .......................................................................................... 58
7.6. Mechanical Views ................................................................................................................... 59
7.7. Schematic Details .................................................................................................................... 60
7.8. Specifications .......................................................................................................................... 61
7.9. Hardware Revision History ...................................................................................................... 62
7.10. Datasheet Revision History ................................................................................................... 62
8. gen4–MOTG–AC3 ........................................................................................................... 63
8.1. Description .............................................................................................................................. 63
8.2. Hardware Overview ................................................................................................................ 63
8.3. Pin Description ........................................................................................................................ 63
8.4. Accessing pins of MOTG via gen4-PA ...................................................................................... 64
8.5. Mechanical Views ................................................................................................................... 65
8.6. Schematic Details .................................................................................................................... 66
8.7. Specifications .......................................................................................................................... 67
8.8. Hardware Revision History ...................................................................................................... 68
8.9. Datasheet Revision History ..................................................................................................... 68
9. MOTG-BREADTOOTH ..................................................................................................... 69
9.1. Description .............................................................................................................................. 69
9.2. Hardware Overview ................................................................................................................ 69
9.3. Pin Description ........................................................................................................................ 69
9.4. Mechanical Views ................................................................................................................... 70
9.5. Schematic Details .................................................................................................................... 71
9.6. Hardware Revision History ...................................................................................................... 72
9.7. Datasheet Revision History ..................................................................................................... 72
10. Legal Notice ................................................................................................................. 73
11. Contact Information ..................................................................................................... 73
MOTG - Module On The Go
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MOTG Introduction
MOTG, Modules on the Go is a concept from 4D Systems revolutionizing embedded design allowing instant and
flexible hardware expansion solution.
MOTG modules offer a simple plug and play interface to Universal MOTG BUS (UMI) allowing rapid assembly and
maintenance. This removes the hassle of having to solder and end up with a wiring nest. It also allows the designer to
easily remove the existing module or add another module instead, which could be very useful during the phase of
prototyping.
Importantly, MOTG series was designed with careful consideration for space with its compact and low profile design.
Universal MOTG Interface (UMI)
Pin Description
Description
3.3V
3.3V Input Supply
GND
Supply Ground
RX
Asynchronous Serial Receive Pin
TX
Asynchronous Serial Transmit Pin
GPIO5
General Purpose Input Output Pin
GPIO4
General Purpose Input Output Pin
GPIO3
General Purpose Input Output Pin
GPIO2
General Purpose Input Output Pin
GPIO1
General Purpose Input Output Pin
SCL
I2C Clock Pin
SDA
I2C Data Pin
SCK
Clock
MISO
Master In Salve Out
MOSI
Master Out Slave In
GND
Supply Ground
5.0V
5.0V Input Supply
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Board Dimension
The MOTG boards are designed in such a way that the leading edge (header end) of the MOTG modules is a fixed
design, and depending how complex the MOTG module is, will determine how long the board itself is. By default, the
standard MOTG module is around 37mm in length, but can be extended longer if required. Note that depending on
the target application, longer boards may have mounting challenges.
Created by 4D Systems, UMI is an open standard – anyone can implement UMI in their hardware design provided the
requirements for UMI are met.
Hardware Support
Improving the experience with MOTG modules, 4D Systems provides interface boards enabling easy connectivity to
popular host controllers such as gen4 modules, Arduino, Raspberry PI and Beaglebone Black.
MOTG - BREADTOOTH
The MOTG-BREADTOOTH breaks out the UMI pins of
the MOTG. It is compatible with all MOTG modules
and is a quick and easy way to make your MOTG
module breadboard-friendly. The MOTG-
BREADTOOTH permits the MOTG to be interfaced to a
breadboard for prototyping and for interfacing to
virtually any host.
MOTG - Module On The Go
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gen4-MOTG-AC1
The gen4-MOTG-AC1 Interface Board allows easy
interface of a MOTG module to Diablo16-based gen4
display modules. The board carries one UMI-
compatible MOTG slot which acts as an extension to
the display module providing plug-and-play interface
with MOTG.
The interface board is designed to sit flush on the back
of the Diablo16 2.4” to 3.5” display modules enabling
sleek and compact designs. For more information,
refer to section 6 of this datasheet.
gen4-MOTG-AC2
The gen4-MOTG-AC2 Interface Board allows easy
interface of a MOTG module to Diablo16-based gen4
display modules. The board carries two UMI-
compatible MOTG slots which act as an extension to
the display module providing plug-and-play interface
with MOTG.
The interface board is designed to sit flush on the back
of the Diablo16 3.2” and 3.5” display modules enabling
sleek and compact designs. For more information,
refer to section 7 of this datasheet.
gen4-MOTG-AC3
The gen4-MOTG-AC3 Interface Board allows easy
interface of a MOTG module to Picaso-based gen4
display modules. The board carries one UMI-
compatible MOTG slot which acts as an extension to
the display module providing plug-and-play interface
with MOTG.
The interface board is designed to sit flush on the back
of the Picaso 2.4” to 3.2” display modules enabling
sleek and compact designs. For more information,
refer to section 8 of this datasheet.
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Software Support
4D Systems also provides extensive software support allowing designers to get started easily with popular host
controller platforms. In addition, projects, application notes and code base examples utilising MOTG modules are
available at www.4dsystems.com.au
1. MOTG – WiFi - ESP
1.1. Description
MOTG-WiFi-ESP provides a low-cost solution for all
embedded wireless applications. It features an
ESP8266 Wi-Fi SoC, a leading platform for Wi-Fi
related projects or Internet of Things (IoT).
The MOTG-WiFi-ESP supports APSD for VoIP
applications and Bluetooth co-existence interface. It
contains a self-calibrated RF allowing it to work under
all operating conditions.
1.2. Features
• ESP8266 Wi-Fi Module by Espressif with
◦ 802.11 b/g/n
◦ Wi-Fi Direct (P2P), soft-AP
◦ TCP/IP protocol stack
◦ 1MB Flash
• 3.3V Power supply only
• Supports 2-Wire 3.3V TTL UART interface
• On board Reset and Flash Buttons
• On board PCB trace antenna
1.3. Before Getting Started
Out of the box, the chipset’s UART pins are not
connected to the UMI of the MOTG.
MOTG-WiFi-ESP hardware allows the UART pins to be
connected to either TX, RX or GPIO1, GPIO2 of the
UMI. This is could be achieved by shorting the
respective sides of solder bridges SB1 and SB2, using a
solder blob and a soldering iron. This must be done by
the User.
Unless the designer intends to use 2 UART MOTGs on
a gen4-MOTG-AC2 board, the UART pins should be
directed to TX, RX of the UMI as shown above.
When two UART MOTGs are being used on a gen4-
MOTG-AC2 board, the UART pins of one of the MOTGs
should be diverted to GPIO1 and GPIO2 of the UMI, as
shown below. This prevents both MOTGs from utilising
the same pins of the gen4 display module for UART
communication.
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1.4. Chipset Features
1.4.1 The ESP8266 Wi-Fi Module
The ESP8266 Wi-Fi SoC is a leading platform for Wi-Fi
related projects or Internet of Things (IoT).
The ESP8266 supports APSD for VoIP applications and
Bluetooth co-existence interfaces, it contains a self-
calibrated RF allowing it to work under all operating
conditions.
There is an almost limitless fountain of information
available for the ESP8266, all of which has been
provided by amazing community support.
By default, the MOTG-WiFi-ESP module comes with
the AT Command set, so no programming of the WiFi
module’s firmware is required to get it running.
The data sheet for the ESP8266 is available from the
https://espressif.com website.
1.5. Pins, Buttons and Solder Bridges
1.5.1 Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
RX
Asynchronous Serial Receive Pin
4
TX
Asynchronous Serial Transmit
Pin
5
N/C
No Connect
6
N/C
No Connect
7
GPIO3
Reset pin. An active Low pulse
will reset the module
8
GPIO2
RX Bypass
9
GPIO1
TX Bypass
10
N/C
No Connect
11
N/C
No Connect
12
N/C
No Connect
13
N/C
No Connect
14
N/C
No Connect
15
GND
Supply Ground
16
N/C
No Connect
Note:
Designer can choose if the UART pins of the MOTG
should be connected to either TX, RX or GPIO1, GPIO2
of the UMI. This is could be achieved by shorting the
respective sides of solder bridges SB1 and SB2.This is
discussed in detail in 1.3. Before Getting Started.
1.5.2 Button Description
The MOTG-WiFi-ESP also has two buttons, the
functionalities of which are described in the table
below.
Button
Description
Reset
Resets the ESP8266 module
Flash
Used along with Reset button to
update/change firmware on ESP8266
The Flash button, when held down and the reset
button pressed, puts the ESP8266 WiFi processor into
its bootloader mode. This is required when flashing
the ESP8266 with an updated or alternative firmware.
1.5.3 Solder Bridge Description
The MOTG-WiFi-ESP also has two solder bridges. The
functionality of these solder bridges is described in the
table below. These are soldered by the User.
Solder
Bridge
Description
SB1
TX Selector
SB2
RX Selector
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1.6. Firmware Programming
The MOTG-WiFi-ESP comes preprogramed with the AT
command set firmware. If an updated command set is
desired, or if another program is to be loaded on to the
ESP8266 instead, then the default AT command set
will be lost.
The following procedure outlines how to reload the
ESP8266 with the AT command set.
Please download the AT command set files from the
MOTG-WiFi-ESP product page on the 4D Systems
website.
Extract the files to a known location on your hard drive
that is easy to access.
Run the application:
ESPFlashDownloadTool_v3.3.4.exe
The application window will appear.
It will be noticed there are 6 different files preloaded
into the Download Path Config boxes. These need to
be changed to the location where the files were
extracted to.
Click the [...] mark and locate the path to the file it is
referring to.
The lines will be highlighted if the files are found.
Ensure that the addresses are correct as per the
picture and set to the following:
boot_v1.6.bin – ADDR 0x0000
user1.1024.new.2.bin – ADDR 0x01000
esp_init_data_default.bin – ADDR 0xfc000
blank.bin – ADDR 0x7e000
blank.bin – ADDR 0xfe000
blank1mb.bin – ADDR 0x0000
All the files are located in the root folder of that zip
you just extracted, next to the
ESPFlashDownloadTool_v3.3.4.exe file.
The following 5 pins of the MOTG-WiFi-ESP will be
used when uploading a firmware. TX, RX sides of the
SB1 and SB2 should be shorted for the following
procedure.
+3.3V (not 5V tolerant)
GND
RX
TX
GPIO3 (Reset)
In this case, a gen4-MOTG-AC1 is used to gain access
to the above 5 pins of the MOTG-WiFi-ESP. However,
other gen4-MOTG-AC interface boards provided by 4D
Systems could be used as well. The gen4-MOTG-AC1 is
then interfaced to the gen4-PA, which essentially
serves as a breakout board for the UMI pins in this
setup.
Note: If you opt to use a MOTG-BREADTOOTH instead
of the gen4-MOTG-AC1 + gen4-PA combo, the 5V
supply needs to be dropped to 3.3V externally, as
MOTG-BREADTOOTH does not facilitate this internally.
MOTG - Module On The Go
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Lastly, a programming module is needed to program
the MOTG-WiFi-ESP through the gen4-MOTG-AC1 +
gen4-PA combo. This process does not necessarily
require a 4D Systems programming module - the 4D
USB programming cable or the uUSB-PA5. However
these are compatible and could be used to perform
this procedure.
Carefully slide the MOTG-WiFi-ESP on to the gen4-
MOTG-AC1. Then connect the gen4-MOTG-AC1 to the
gen4-PA using a 30-way FFC cable. Then connect the
4D programming module to the corresponding pins of
the gen4-PA as shown in the image below.
MOTG-WiFi-ESP
gen4-PA
4D programming
cable
+5V
5V
GND
GND
GND
RX
GPIO1
TX
TX
GPIO2
RX
GPIO3 (Reset)
GPIO10
RES
Then check the com port of the programmer you are
using and change it accordingly in the application.
Before anything is programmed, the ESP8266 module
needs to be wiped blank. It is always best to do this
before programming in any new firmware, as residual
data can be left which can cause unexpected results.
To wipe the ESP8266 blank, untick all the files in the
Download Path Config section, except for
blank1mb.bin – ADDR 0x0000 (the last file)
Now the ESP8266 needs to be placed into bootloader
mode. To do this, simply press and hold the Flash
button on the MOTG-WiFi-ESP, and press the Reset
button for a second and then release the Reset button.
Keep holding the Flash button. A second or so later,
you can release the Flash button. The ESP8266 should
now be in bootloader mode.
Press the Start Button, to start the programming of the
ESP8266 module.
After clicking the START button the application will
SYNC as shown below.
Then the application will load and the ESP8266 is
wiped blank. It will complete when the progress bar
goes to the very right hand side.
If the initiation was not successful, the loading will fail.
If failed, try the procedure again till it loads.
MOTG - Module On The Go
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Now the module is ready to be programmed with the
firmware. This procedure is almost same as earlier.
Tick all the files except for blank1mb.bin – ADDR
0x0000 (the only difference in the procedure
compared to before).
Again, the ESP8266 needs to be placed into bootloader
mode. To do this, simply press and hold the Flash
button on the MOTG-WiFi-ESP, and press the Reset
button for a second and then release the Reset button.
Keep holding the Flash button. A second or so later,
you can release the Flash button. The ESP8266 should
now be in bootloader mode.
Press the Start Button, to start the programming of the
ESP8266 module. When the progress bar goes to the
very right hand side, the process is complete, and the
module should have been sucessfully loaded with the
AT command set.
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1.7. Mechanical Views
MOTG – Module On The Go
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1.8. Schematic Details
MOTG – Modules On The Go
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1.9. Specifications
RECOMMENDED OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)
1.7
3.3
3.6
V
Operating Temperature
-20
--
70
°C
Input Low Voltage (VIL)
All pins
-0.3
--
0.25*VCC
V
Input High Voltage (VIH)
All pins
0.75*VCC
--
3.6
V
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Current (ICC)
--
215.0
--
mA
Output Low Voltage (VOL)
-0.3
--
0.1*VCC
V
Output High Voltage (VOH)
0.8*VCC
--
VCC
V
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1.10. Hardware Revision History
1.11. Datasheet Revision History
End of MOTG-WiFi-ESP Datasheet
Revision
Number
Date
Description
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release Version
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2. MOTG-MP3
2.1. Description
MOTG-MP3 is an audio sound module that can play
MP3 audio files stored on a micro-SD card, such as
voice and music.
The MOTG-MP3 features an on board 16bit MCU,
specifically designed for hardware audio decoding by
4D Systems.
It features an on-board mono amplifier capable of
driving a 4-ohm 3-watt speaker. It also features stereo
DAC output for connecting directly to headphones or
to an external amplifier.
In short, the MOTG-MP3 offers very flexible, compact
and low cost embedded audio solution for many
applications.
2.2. Features
• Features SOMO II 16 bit MCU by 4D Systems
• Supports 5V power supply only
• Supports bit rates 11172-3 & ISO1381303
• Sample rates from 8Khz to 48Khz
• 24-bit DAC audio output
• Supports 2-Wire 3.3V TTL UART interface
• Mono amplified Speaker output
• On-board micro-SD memory card connector
2.3. Before Getting Started
Out of the box, the chipset’s UART pins are not
connected to the UMI of the MOTG.
MOTG-MP3 hardware allows the UART pins to be
connected to either TX, RX or GPIO1, GPIO2 of the
UMI. This is could be achieved by shorting the
respective sides of solder bridges SB1 and SB2 with a
blob of solder, using a soldering iron. This must be
done by the User.
Unless the designer intends to use 2 UART MOTGs on
a gen4-MOTG-AC2 board, the UART pins should be
directed to TX, RX of the UMI as shown above.
When two UART MOTGs are being used on a gen4-
MOTG-AC2 board, the UART pins of one of the MOTGs
should be diverted to GPIO1 and GPIO2 of the UMI, as
shown below. This prevents both MOTGs from utilising
the same pins of the gen4 display module for UART
communication.
MOTG – Modules On The Go
MOTG Page 18 of 73 www.4dsystems.com.au
2.4. Pin and Solder Bridges
2.4.1 Pin Description
Pin
Symbol
Description
1
3.3V
No Connect
2
GND
Supply Ground
3
RX
Asynchronous Serial Receive Pin
4
TX
Asynchronous Serial Transmit
Pin
5
GPIO5
Busy Signal
6
N/C
No Connect
7
N/C
No Connect
8
GPIO2
RX Bypass Pin
9
GPIO1
TX Bypass Pin
10
N/C
No Connect
11
N/C
No Connect
12
N/C
No Connect
13
N/C
No Connect
14
N/C
No Connect
15
GND
Supply Ground
16
5.0V
5V Input Supply
Note:
GPIO 5 indicates if the Audio is playing. It can be used
to trigger an external amplifier. Low indicates Audio
output is occurring. High indicates no Audio output.
SB3 requires to be shorted in order to utilize this
functionality.
The designer can choose if the UART pins of the MOTG
should be connected to either TX, RX or GPIO1, GPIO2
of the UMI. This is could be achieved by shorting the
respective sides of solder bridges SB1 and SB2.This is
discussed in detail in 2.3. Before Getting Started.
2.4.2 Solder Bridge Description
The MOTG-MP3 also has 3 solder bridges. The
functionality of those solder bridges is described in the
table below. These are soldered by the User.
Solder Bridge
Description
SB1
TX Selector
SB2
RX Selector
SB3
Enable Busy Pin
SPK+, SPK- provides a differential amplified output to
a single speaker. Connect these pins to a 4/8/16/32
ohm speaker, at max of 3 watts when powered from a
5V supply. 8ohm 2.5W is recommended.
DAC_R, DAC_L provides the Left and Right audio
outputs, capable of driving headphones directly or
small speakers, or fed into an external amplifier. To
utilise these signals, wires or pins can be soldered to
these pads by the User.
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2.5. Serial Commands
The SERIAL-MODE provides a simple 2-wire TTL Serial UART interface to any micro-controller capable of interfacing to
5.0V TLL Serial UART system that can be configured to output the simple protocol required to communicate with the
MOTG-MP3.
Baud Rate: 9600 bps
Data bits: 8
Stop Bits: 1
Parity bit: none
Flow Control: none
The MOTG-MP3 audio operations such as PLAY, PAUSE, STOP, NEXT, PREVIOUS and VOLUME etc are all available to
the host micro-controller to control using a simple set of bytes sent to the MOTG-MP3, along with many more, which
can be found under the Valid Commands listed below.
Command Format: The format of the serial commands are as follows
FORMAT: $S, CMD, Feedback, Para1, Para2, Checksum1, Checksum2, $0
$S
Start Character $S is 0x7E in HEX
Every command starts with this
CMD
Command Code
Every command has a unique
command code, which determines
the operation
Feedback
Command Feedback
Specifies whether feedback is
required by the host microcontroller
in reply to the command. 1 =
Feedback, 0 = No Feedback
Para1
Parameter #1
First parameter of the specific
Command Code
Para2
Parameter #2
Second parameter of the specific
Command Code
Checksum1
Checksum #1
First byte of the checksum.
Checksum calculation shown below
Checksum2
Checksum #2
Second byte of the checksum.
Checksum calculation shown below.
$0
End Character $0 is 0xEF in HEX
Every command ends with this
Checksum Calculation:
The checksum is calculated using the following formula.
Checksum (2 bytes) = 0xFFFF – (CMD + Feedback + Para1 + Para2) + 1
MOTG – Modules On The Go
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Valid Commands:
All commands shown below have Feedback turned off so there will be no data sent from the MOTG-MP3 after the
command has been sent from the microcontroller (except for the Query commands which are requesting data).
Function
Serial Command
Description
NEXT
7E 01 00 00 00 FF FF EF
If no track is currently playing, issuing the NEXT command will start
playing the first track copied to the media (see Section 6). If the MOTG-
MP3 is currently playing a song or has previously played a song, this
will play the next song in the order copied on to the media.
PREVIOUS
7E 02 00 00 00 FF FE EF
If no track is currently playing, issuing the PREVIOUS command will
start playing the last track copied to the media (see Section 6). If the
MOTG-MP3 is currently playing a song or has previously played a song,
this will play the previous song in the order copied on to the media.
SPECIFY
TRACK #
7E 03 00 00 01 FF FC EF
7E 03 00 00 02 FF FB EF
7E 03 00 00 0A FF F3 EF
Start playing the first track copied to the media. (See Section 6) This
will start playing the second track copied to the media. This will start
playing the tenth track copied to the media.
VOLUME +
7E 04 00 00 00 FF FC EF
This will increase the volume by 1 (0 – 30 range, level 20 is default
power on setting)
VOLUME -
7E 05 00 00 00 FF FB EF
This will decrease the volume by 1 (0 – 30 range, level 20 is default
power on setting)
VOLUME #
7E 06 00 00 1E FF DC EF
7E 06 00 00 05 FF F5 EF
This will set the volume to be 30 (30 is the Max)
This will set the volume to be 5
SPECIFY EQ
7E 07 00 00 01 FF F8 EF
7E 07 00 00 04 FF F5 EF
This will set the EQ to pop
This will set the EQ to classic
(0/1/2/3/4/5 Normal, Pop, Rock, Jazz, Classic, Bass)
REPEAT A
TRACK
7E 08 00 00 01 FF F7 EF
7E 08 00 00 02 FF F6 EF
7E 08 00 00 1F FF D9 EF
This will repeat the first track copied to the media. (See Section 2.6)
This will repeat the second track copied to the media.
This will repeat the thirty first track copied to the media.
PLAY SOURCE
7E 09 00 00 02 FF F5 EF
This will set the MOTG-MP3 to play from a micro-SD Card
RESET
7E 0C 00 00 00 FF F4 EF
This will reset the MOTG-MP3, to be in its powered-on state
PLAY
7E 0D 00 00 00 FF F3 EF
Play the audio track selected (if selected) else the first track copied on
to the media (See Section 2.6)
PAUSE
7E 0E 00 00 00 FF F2 EF
Pause the current playing audio Track. If PLAY command is then sent,
the audio track will resume from where it was paused.
SPECIFY
FOLDER &
TRACK
7E 0F 00 01 01 FF EF EF
7E 0F 00 01 0A FF E6 EF
7E 0F 00 63 FF FE 8F EF
This will start playing Folder 1 from Track 1. (See Section 2.6) This will
start playing Folder 1 from Track 10. This will start playing Folder 99
from Track 255
CONTINUOUS
7E 11 00 00 01 FF EE EF
This will enable continuous mode (disable RANDOM TRACK and
REPEAT CURRENT if previously enabled), which will play all songs on
the memory card, one after the other. Start track with PLAY.
STOP
7E 16 00 00 00 FF EA EF
Stop the current playing audio Track. If PLAY command is then sent,
the audio track will start from the beginning.
RANDOM
TRACK
7E 18 00 00 00 FF E8 EF
This will enable Random Mode (disable CONTINUOUS and REPEAT
CURRENT if previously enabled), which plays random tracks one after
the other, continuously. Start track with PLAY.
REPEAT
CURRENT
7E 19 00 00 00 FF E7 EF
This will enable the repeat play mode (disable CONTINUOUS and
RANDOM TRACK if previously enabled), which repeats the currently
playing track, so it will play over and over continuously. Track must be
playing before this command is sent.
SINGLE PLAY
7E 19 00 00 01 FF E6 EF
This will disable CONTINUOUS, RANDOM TRACK or REPEAT CURRENT
modes if previously enabled, which is how the module starts up by
default. This will allow one song to play and then stop. Start track with
PLAY.
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QUERY
VOLUME
7E 43 00 00 00 FF BD EF
Query the current volume.
QUERY EQ
7E 44 00 00 00 FF BC EF
Query the current EQ Setting
(0/1/2/3/4/5 Normal, Pop, Rock, Jazz, Classic, Bass)
QUERY
TRACKS uSD
7E 48 00 00 00 FF B8 EF
Query the number of files present on the uSD
QUERY
CURRENT
TRACK uSD
7E 4C 00 00 00 FF B4 EF
Query the current track playing from the micro-SD Card
QUERY
TRACKS
FOLDER
7E 4E 00 00 01 FF B1 EF
7E 4E 00 00 0B FF A7 EF
This will return the number of tracks in Folder 1 (001)
This will return the number of tracks in Folder 11 (011)
Successful command received by MOTG-MP3 (Feedback Byte needs to be ON):
If Feedback is required for successful receipt of a command, simply change the Feedback byte from 0x00 to 0x01, and
a confirmation message will be sent from the MOTG-MP3 after the command is sent and received.
Feedback Received
Description
7E 41 00 00 00 FF BF EF
Command Successfully Received
Errors received from the MOTG-MP3:
If a command is sent to the MOTG-MP3 and the MOTG-MP3 resulted in an error from that command, the following
messages could be sent. These are sent on error regardless of if the feedback byte is enabled or disabled.
ERRORS Received
Description
7E 40 00 00 01 FF BF EF
Module is busy
7E 40 00 00 02 FF BE EF
Module is currently in sleep mode
7E 40 00 00 03 FF BD EF
Serial received an error
7E 40 00 00 04 FF BC EF
Checksum error
7E 40 00 00 05 FF BB EF
Beyond scope of specified file/folder
7E 40 00 00 06 FF BA EF
Specified file/Folder not found
Other information received from MOTG-MP3:
These commands are sent from the MOTG-MP3 when certain events occur, and could come at various times.
DATA Received
Description
7E 3A 00 00 02 FF C4 EF
micro-SD Card Inserted. Sent every time a micro-SD card is inserted.
7E 3B 00 00 02 FF C3 EF
micro-SD Card Removed. Sent every time a micro-SD card is ejected. NOTE: when the
card is ejected, multiple messages may be sent (ejected, inserted and ejected again).
This is a side-effect of the type of micro-SD socket that is installed if the card is
ejected slowly, ie holding in the card before releasing.
7E 3D 00 00 02 FF C1 EF
7E 3D 00 00 0A FF B9 EF
micro-SD Card source, Finished playing Track 02
micro-SD Card source, Finished playing Track 10 (0x0A)
7E 3F 00 00 00 FF C1 EF
MOTG-MP3 has just started up, No media detected
7E 3F 00 00 02 FF BF EF
MOTG-MP3 has just started up, micro-SD Card detected
MOTG – Modules On The Go
MOTG Page 22 of 73 www.4dsystems.com.au
2.6. Media – micro-SD card
The MOTG-MP3 uses off the shelf micro-SD and micro-
SD-HC memory cards with up to 32GB capacity, and
compatible with both FAT16 and FAT32 file formats.
The formatting of the card can be done on any
PC/Mac/Linux system with a card reader. Select
appropriate drive and choose the FAT16 or FAT32 file
format, depending on capacity of your micro-SD card.
The card is now ready to be used in the MOTG-MP3.
NOTE: Certain brands of micro-SD memory cards may
not work properly. This is evident by some files that
may be skipped and not played by the MOTG-MP3.
2.7. File & Folder Structure
The MOTG-MP3 is flexible how files are stored on the
micro-SD, however in order to have control over which
files are played, it is important to follow some simple
naming rules in order for the MOTG-MP3 to play the
specific file you intend to play.
The MOTG-MP3 is capable of addressing up to 99
Folders, each with up to 255 songs.
MOTG-MP3 is not capable of reading ID3 information
from the MP3 files, so purely relies on the name of the
file as the index (Primary method), or the order the
files were copied onto the media (Secondary Method).
While MOTG-MP3 files can be named almost anything
and they will play, in order to index the files so they
can be picked on request using a specific serial
command to select the folder/file using the Primary
Method, the following must be observed:
001ABCDEFG.mp3
Where 001 refers to the track number from 1 (001) to
255 as the MOTG-MP3 can address up to 255 songs in
each folder, and ABCDEFG refers to any alphanumeric
name of your choosing, where the total file name
length can be 32 characters long (Operating System
dependant), ending with .mp3 extension.
The folder structure should have then the following
naming convention:
01
Where 01 refers to a number from 01 to 99, as the
MOTG-MP3 can address up to 99 folders.
If Songs are placed on the media and they may or may
not follow the naming convention, then the song can
be played using the PLAY, NEXT, PREV commands or
buttons, or using the SPECIFY TRACK # command,
which uses the Secondary Method and plays based on
the order the songs were copied (Secondary Method)
on to the media and not the name or location of the
files.
The SPECIFY FOLDER & TRACK command however
cannot be used if the naming convention has not been
followed (Primary Method), as this relies on the
formatting above to be observed.
Note, when using the SPECIFY FOLDER & TRACK
command, Folder and Track numbering is in HEX. So
the Folders are 0x01 through 0x63 (1 to 99), and the
Tracks are 0x01 through 0xFF (1 to 255).
If the above formatting is observed, all commands will
work corretly, so both Primary and Secondary
methods are fucntional.
It may be difficult to determine the order songs were
copied onto the media, so the Secondary Method
should only be used if the order is not critical or the
copy order is known. The Primary Method should be
used as the perferred method.
MOTG – Module On The Go
MOTG Page 23 of 73 www.4dsystems.com.au
2.8. Mechanical Views
MOTG – Module On The Go
MOTG Page 24 of 73 www.4dsystems.com.au
2.9. Schematic Details
MOTG – Modules On The Go
MOTG Page 25 of 73 www.4dsystems.com.au
2.10. Specifications
RECOMMENDED OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)
3.3
5.0
5.0
V
Operating Temperature
0.0
--
70.0
°C
Input Low Voltage (VIL)
All pins
-0.3
--
0.3*VCC
V
Input High Voltage (VIH)
All pins
0.7*VCC
--
VCC+0.3
V
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Current (ICC)
VCC = 5.0V, Audio Playing
30.0
--
300.0
mA
Standby Current
VCC = 5.0V
--
20.0
--
uA
Output Low Voltage (VOL)
--
--
0.3
V
Output High Voltage (VOH)
2.7
--
VCC
V
MOTG – Modules On The Go
MOTG Page 26 of 73 www.4dsystems.com.au
2.11. Hardware Revision History
2.12. Datasheet Revision History
End of MOTG-MP3 Datasheet
Revision
Number
Date
Description
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 27 of 73 www.4dsystems.com.au
3. MOTG-RS232
3.1. Description
RS232 is a standard communication port for various
industry and networking equipment. However, most
of the microcontrollers do not facilitate direct RS232
communication as they do not support RS232 voltage
levels.
MOTG-RS232 provides a low power, high speed and
low cost solution for incorporating RS232 serial
communication to your design.
3.2. Features
• Level conversion using ST232CDR IC by ST
• Supports both 3.3V and 5V power supply
• Up to 400kbps data rate
• ±25V input levels
• 300 µA supply current
• 6 V/µs minimum slew rate
• Supports 2-wire 3.3V/5V TTL UART interface (the
logic depends on the supply)
3.3. Before Getting Started
Out of the box, the chipset’s UART pins are not
connected to the UMI of the MOTG.
MOTG-RS232 hardware allows the UART pins to be
connected to either TX, RX or GPIO1, GPIO2 of the
UMI. This is could be achieved by shorting the
respective sides of solder bridges SB1 and SB2 using a
solder blob and a soldering iron. This is done by the
User.
Unless the designer intends to use 2 UART MOTGs on
a gen4-MOTG-AC2 board, the UART pins should be
directed to TX, RX of the UMI as shown above.
When two UART MOTGs are being used on a gen4-
MOTG-AC2 board, the UART pins of one of the MOTGs
should be diverted to GPIO1 and GPIO2 of the UMI, as
shown below. This prevents both MOTGs from utilising
the same pins of the gen4 display module for UART
communication.
3.4. Chipset Features
MOTG-RS232 carries the ST3232, low power RS232
driver and receiver IC. The data sheet for the ST3232
is available from the http://www.st.com/ website.
MOTG – Modules On The Go
MOTG Page 28 of 73 www.4dsystems.com.au
3.5. Pins and Solder Bridges
3.5.1 Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
RX
Asynchronous Serial Receive Pin
4
TX
Asynchronous Serial Transmit
Pin
5
N/C
No Connect
6
N/C
No Connect
7
N/C
No Connect
8
GPIO2
RX Bypass Pin
9
GPIO1
TX Bypass Pin
10
N/C
No Connect
11
N/C
No Connect
12
N/C
No Connect
13
N/C
No Connect
14
N/C
No Connect
15
GND
Supply Ground
16
5.0V
5V Input Supply
Note:
Designer can choose if the UART pins of the MOTG
should be connected to either TX, RX or GPIO1, GPIO2
of the UMI. This iss could be achieved by shorting the
respective sides of solder bridges SB1 and SB2.This is
discussed in detail in 3.3.Before Getting Started.
3.5.2 Solder Bridge Description
The MOTG-RS232 also has 4 solder bridges. The
functionality of those solder bridges is described in the
table below. These are soldered by the User.
Solder Bridge
Description
SB1
Short SB1 for 5.0V input supply
SB2
Short SB2 for 3.3V input supply
SB3
TX selector
SB4
RX Selector
The MOTG-RS232 supports both 3.3V and 5V supply.
The preferred supply voltage could be chosen by
shorting the appropriate solder bridge.
MOTG – Module On The Go
MOTG Page 29 of 73 www.4dsystems.com.au
3.6. Mechanical Views
MOTG – Module On The Go
MOTG Page 30 of 73 www.4dsystems.com.au
3.7. Mechanical Views
MOTG – Modules On The Go
MOTG Page 31 of 73 www.4dsystems.com.au
3.8. Specifications
RECOMMENDED OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)
3.3
5.0
5.0
V
Operating Temperature
0.0
--
70.0
°C
Input Low Voltage (VIL)
All pins
-0.3
--
0.3*VCC
V
Input High Voltage (VIH)
All pins
0.7*VCC
--
VCC+0.3
V
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Current (ICC)
VCC = 5.0V, Audio Playing
30.0
--
300.0
mA
Standby Current
VCC = 5.0V
--
20.0
--
uA
Output Low Voltage (VOL)
--
--
0.3
V
Output High Voltage (VOH)
2.7
--
VCC
V
MOTG – Modules On The Go
MOTG Page 32 of 73 www.4dsystems.com.au
3.9. Hardware Revision History
3.10. Datasheet Revision History
End of MOTG-RS232 Datasheet
Revision
Number
Date
Description
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 33 of 73 www.4dsystems.com.au
4. MOTG-RS485
4.1. Description
RS485 is a standard communication port for various
industry and networking equipment and enables easy
configuration of local networks and multipoint
communications links. Unfortunately, most of the
microcontrollers do not support RS485 voltage levels.
MOTG-RS485 provides a high speed and low cost
solution for incorporating RS485 Serial
communication to your design.
4.2. Features
• ST1480ACDR differential line transceiver
• 3.3V power supply only
• ESD protection: ±15 kV human body model
• Guaranteed 12 Mbps data rate
• 7 to 12 common model input voltage range
• Supports 2-wire 3.3V/5V TTL UART interface
4.3. Before Getting Started
Out of the box, the chipset’s UART pins are not
connected to the UMI of the MOTG.
MOTG-RS485 hardware allows the UART pins to be
connected to either TX, RX or GPIO1, GPIO2 of the
UMI. This is could be achieved by shorting the
respective sides of solder bridges SB2 and SB3 using a
solder blob and a soldering iron. This is done by the
User.
Unless the designer intends to use 2 UART MOTGs on
a gen4-MOTG-AC2 board, the UART pins should be
directed to TX, RX of the UMI as shown above.
When two UART MOTGs are being used on a gen4-
MOTG-AC2 board, the UART pins of one of the MOTGs
should be diverted to GPIO1 and GPIO2 of the UMI, as
shown below. This prevents both MOTGs from utilising
the same pins of the gen4 display module for UART
communication.
4.4. Chipset Features
MOTG-RS485 carries a ST1480ACDR differential line
transceiver. The data sheet for the ST3232 is available
from the http://www.st.com/ website.
MOTG – Modules On The Go
MOTG Page 34 of 73 www.4dsystems.com.au
4.5. Pins and Solder Bridges
4.5.1 Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
RX
Asynchronous Serial Receive Pin
4
TX
Asynchronous Serial Transmit
Pin
5
GPIO5
Turn Around Pin, DE/RE
6
N/C
No Connect
7
N/C
No Connect
8
GPIO2
RX Bypass Pin
9
GPIO1
TX Bypass Pin
10
N/C
No Connect
11
N/C
No Connect
12
N/C
No Connect
13
N/C
No Connect
14
N/C
No Connect
15
GND
Supply Ground
16
N/C
No Connect
Note:
Designer can choose if the UART pins of the MOTG
should be connected to either TX, RX or GPIO1, GPIO2
of the UMI. This is could be achieved by shorting the
respective sides of solder bridges SB2 and SB3. This is
discussed in detail in 4.3. Before Getting Started.
Note:
Please take note that GPIO5 marking is missing on the
PCB silkscreen overlay on PCB HW REV 1.1. This is the
Turn Around pin and is used to select if the module is
transmitting or receiving. Please refer to the
schematic to see connection details.
4.5.2 Solder Bridge Description
The MOTG-RS485 also has 3 solder bridges. The
functionality of those solder bridges is described in the
table below. These are soldered by the User.
Solder
Bridge
Description
SB1
Short to place terminating resistor
SB2
TX selector
SB3
RX Selector
Solder Bridge 1 (SB1) provides the option of placing or
removing the terminating resistor in to the design.
Each differential pair of wires is a remission line and
proper termination of the line will prevent reflection.
MOTG-RS485 has an inbuilt termination resistor (120
ohms) for this purpose.
MOTG – Module On The Go
MOTG Page 35 of 73 www.4dsystems.com.au
4.6. Mechanical Views
Please note – PCB Silkscreen on REV 1.1 PCB’s is missing GPIO5 label.
MOTG – Module On The Go
MOTG Page 36 of 73 www.4dsystems.com.au
4.7. Schematic Details
MOTG – Modules On The Go
MOTG Page 37 of 73 www.4dsystems.com.au
4.8. Specifications
RECOMMENDED OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)
3.0
--
3.6
V
Operating Temperature
0.0
--
70.0
°C
Input Low Voltage (VIL)
DE, DI, RE
--
--
0.8
V
Input High Voltage (VIH)
DE, DI, RE
2.0
--
--
V
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Current (ICC)
No Load, DI = 0 V or VCC,
DE=VCC, RE=0 V or VCC
--
1.3
2.2
mA
Transmitter Input Voltage
No Load, DI=0 V or VCC,
DE=0 V, RE=0 V
--
1.2
1.9
mA
Control Input Voltage
-0.3
--
7.0
V
Driver Input Voltage
-0.3
--
7.0
V
Receiver Output Voltage
-0.3
--
VCC+0.3
V
Receiver Input Voltage
-14.0
--
14.0
V
Driver Output Voltage
-14.0
--
14.0
V
MOTG – Modules On The Go
MOTG Page 38 of 73 www.4dsystems.com.au
4.9. Hardware Revision History
4.10. Datasheet Revision History
End of MOTG-RS485 Datasheet
Revision
Number
Date
Description
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 39 of 73 www.4dsystems.com.au
5. MOTG-BLUETOOTH
5.1. Description
MOTG-BLUETOOTH provides low cost and low energy
solution for all embedded Bluetooth applications. The
MOTG-BLUETOOTH carries a RN4870 Bluetooth
module, providing a complete solution to implement
Bluetooth 4.2 Low energy connectivity.
The MOTG-BLUETOOTH can be dynamically
configured easily using ASCII commands using the host
microcontroller.
5.2. Features
• RN4870 Bluetooth Module by Microchip with
◦ Bluetooth 4.2 Low Energy Stack
◦ ASCII Command interface API over UART
◦ Secure AES128 Encryption
• 3.3V Power supply only
• Supports 2-Wire 3.3V TTL UART Interface
• Integrated Ceramic Chip Antenna
• On board Status LED
• Remote Configuration Over The Air
• ISM Band 2.402 GHz to 2.480 GHz Operation
• Channels: 0-39
• Receive Sensitivity: -90 dBm (LE)
• Transmit Power: 0dBm
5.3. Before Getting Started
Out of the box, the chipset’s UART pins are not
connected to the UMI of the MOTG.
MOTG-BLUETOOTH hardware allows the UART pins to
be connected to either TX, RX or GPIO1, GPIO2 of the
UMI. This is could be achieved by shorting the
respective sides of solder bridges SB2 and SB3 using a
solder blob and soldering iron. This must be completed
by the User.
Unless the designer intends to use 2 UART MOTGs on
a gen4-MOTG-AC2 board, the UART pins should be
directed to TX, RX of the UMI as shown above.
When two UART MOTGs are being used on a gen4-
MOTG-AC2 board, the UART pins of one of the MOTGs
should be diverted to GPIO1 and GPIO2 of the UMI, as
shown below. This prevents both MOTGs from utilising
the same pins of the gen4 display module for UART
communication.
5.4. Chipset Features
5.4.1 The RN4870 Bluetooth Module
MOTG – Modules On The Go
MOTG Page 40 of 73 www.4dsystems.com.au
The RN4870 module, based on Microchip’s IS187x
Bluetooth LE ICs, is a leading platform for Bluetooth
related projects or Internet of Things (IoT).
This Bluetooth Low Energy module incorporates
Bluetooth 4.2 baseband controller, on-board
Bluetooth stack and RF power amplifier.
The data sheet for the RN4870 is available from the
https://www.microchip.com website. In addition,
more support has been made available for this module
by Microchip.
5.5. Pins and Solder Bridges
5.5.1 Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
RX
Asynchronous Serial Receive Pin
4
TX
Asynchronous Serial Transmit
Pin
5
N/C
No Connect
6
GPIO4
P2_0/MODE Pin
7
GPIO3
Reset pin. An active Low pulse
will reset the module
8
GPIO2
RX Bypass
9
GPIO1
TX Bypass
10
N/C
No Connect
11
N/C
No Connect
12
N/C
No Connect
13
N/C
No Connect
14
N/C
No Connect
15
GND
Supply Ground
16
N/C
No Connect
Note:
Designer can choose if the UART pins of the MOTG
should be connected to either TX, RX or GPIO1, GPIO2
of the UMI. This is could be achieved by shorting the
respective sides of solder bridges SB2 and SB3.This is
discussed in detail in 5.3.Before Getting Started.
5.5.2 Solder Bridge Description
The MOTG-BLUETOOTH has 3 solder bridges. The
functionality of those solder bridges is described in the
table below. These are soldered by the User.
Solder Bridge
Description
SB1
Short to use the GPIO4 to
change/upgrade firmware
SB2
TX selector
SB3
RX Selector
MOTG – Modules On The Go
MOTG Page 41 of 73 www.4dsystems.com.au
5.6. Firmware Programming
The MOTG-BLUETOOTH comes pre-programmed with the firmware version 1.18.3. If an updated command set is
desired instead, then the default firmware will be lost. The following procedure outlines how to reload the RN4870
with the default firmware. Below are the six pins of the MOTG-BLUETOOTH that will be used when uploading a
firmware.
+3.3V (not 5V tolerant)
GND
RX
TX
GPIO3 (Reset)
GPIO4 (P2_0/MODE)
In this case, a gen4-MOTG-AC1 is used to gain access to the essential pins of the MOTG-BLUETOOTH. However, other
gen4-MOTG-AC interface boards provided by 4D Systems could be used as well. The gen4-MOTG-AC1 is then
interfaced to the gen4-PA, which essentially serves as a breakout board for the UMI pins in this setup.
Note: If you opt to use MOTG-BREADTOOTH instead of the gen4-MOTG-AC1 + gen4-PA combo, the 5V needs to be
dropped to 3.3V externally, as MOTG-BREADTOOTH does not facilitate this internally.
Lastly, a programming module is needed to program the MOTG-WiFi-ESP through the gen4-MOTG-AC1 + gen4-PA
combo. This process does not necessarily require a 4D Systems programming module - the 4D USB programming cable
or the uUSB-PA5. However these are compatible and could be used to perform this procedure.
Carefully, slide the MOTG-BLUETOOTH on the gen4-MOTG-AC1 board. Connect the 4D programming module to the
corresponding pins of the gen4 PA as shown in the image below.
MOTG – Modules On The Go
MOTG Page 42 of 73 www.4dsystems.com.au
The RN4870 needs to be placed into Test mode. The following procedure will place the Bluetooth module in Test
mode.
Connect GPIO 9 (P2_0/MODE Pin) of the gen4 PA to Ground.
While GPIO 9 of the gen4 PA is grounded, connect the GPIO10 (Reset) pin to Ground for a second and
disconnect it (Reset) from Ground.
Now disconnect GPIO 9 as well from Ground.
MOTG – Modules On The Go
MOTG Page 43 of 73 www.4dsystems.com.au
Please download the RN4870 firmware files from the MOTG-BLUETOOTH product page on the 4D Systems website.
Extract the files to a known location on your hard drive that is easy to access.
Run the ISupdate Programming Utility and set the baudrate to 115200 and the memory type to Flash/Embedded.
Then check the com port of the 4D programming module and change it accordingly in the application.
Click Connect. If the connection was successful, the application will confirm by printing the following message.
MOTG – Modules On The Go
MOTG Page 44 of 73 www.4dsystems.com.au
Click the Browse button and navigate to the folder where the firmware package was extracted to. Select all hex files
and click Open.
MOTG – Modules On The Go
MOTG Page 45 of 73 www.4dsystems.com.au
Click Update. Allow a few seconds for the update to complete.
Now you can disconnect and close the ISupdate tool.
MOTG – Modules On The Go
MOTG Page 46 of 73 www.4dsystems.com.au
The version of the firmware can be varifyed by opening a CoolTerm connection.
Ensure the details are correct as per the picture, and set to the following:
Baudrate: 115200
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control: None
In addition, the Local Echo has been turned on in the Terminal tab.
Now, enter the Command Mode and Verify Version using the following steps.
Press $ to enter Command Mode
Press V to display firmware version.
The above confirms that the Bluetooth module has been updated to version 1.18.3 of the firmware.
MOTG – Module On The Go
MOTG Page 47 of 73 www.4dsystems.com.au
5.7. Mechanical Views
MOTG – Module On The Go
MOTG Page 48 of 73 www.4dsystems.com.au
5.8. Schematic Details
MOTG – Modules On The Go
MOTG Page 49 of 73 www.4dsystems.com.au
5.9. Specifications
RECOMMENDED OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)
Relative to VSS
1.9
3.3
3.6
V
Operating Temperature
-20.0
--
70.0
°C
Storage Temperature
-65.0
150.0
°C
Input Low Voltage (VIL)
All pins
VSS
--
0.3*VCC
V
Input High Voltage (VIH)
All pins
0.7*VCC
--
VCC
V
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Peak Current
TX mode, VCC = 3V,
TX = 0 dBm, Buck mode
--
--
13.0
mA
RX mode, VCC = 3V,
Buck mode
--
--
13.0
mA
Standby Current
1.9
--
2.9
uA
Output Low Voltage (VOL)
VSS
--
0.2*VCC
V
Output High Voltage (VOH)
0.8*VCC
--
VCC
V
MOTG – Modules On The Go
MOTG Page 50 of 73 www.4dsystems.com.au
5.10. Hardware Revision History
5.11. Datasheet Revision History
End of MOTG-BLUETOOTH Datasheet
Revision
Number
Date
Description
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 51 of 73 www.4dsystems.com.au
6. gen4-MOTG-AC1
6.1. Description
The gen4-MOTG-AC1 Interface Board allows easy
interface of a MOTG module to Diablo16-based gen4
display modules. The board carries one UMI-
compatible MOTG slot which acts as an extension to
the display module providing plug-and-play interface
with MOTG.
The interface board is designed to sit flush on the back
of the Diablo16 2.4” to 3.5” display modules enabling
sleek and compact designs.
It also features a 30 pin ZIF socket, for easy connection
to application boards for further functionality
advancement.
6.2. Hardware Overview
6.3. Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
TX
Asynchronous Serial Receive Pin
connected to PA3 of gen4
Display Module
4
RX
Asynchronous Serial Transmit Pin
connected to PA2 of the gen4
Display Module
5
GPIO5
General Purpose Input Output
Pin connected to PA6 of the
Display.
6
GPIO4
General Purpose Input Output
Pin connected to PA5 of the
Display.
7
GPIO3
General Purpose Input Output
Pin connected to PA4 of the
Display.
8
GPIO2
General Purpose Input Output
Pin connected to PA1 of the
Display.
9
GPIO1
General Purpose Input Output
Pin connected to PA0 of the
Display.
10
SCL
I2C Clock Pin connected to PA9 of
the gen4 Display Module
11
SDA
I2C Data Pin connected to PA10
of the gen4 Display Module
12
SCK
SPI Clock Pin connected to PA13
of the Display
13
MISO
SPI Master In Slave Out Pin
connected to PA11 of the Display
14
MOSI
SPI Master Out Slave In Pin
connected to PA12 of the Display
15
GND
Supply Ground
16
5.0V
5V Input Supply
MOTG Slot
Space to access the uSD
card of the gen4 Display
Module
FPC for gen4 Display
Module
Pins for the UMI
of the MOTG
FPC for User I/O and
gen4 Programming
Pads for External
Power Supply
MOTG – Modules On The Go
MOTG Page 52 of 73 www.4dsystems.com.au
6.4. Accessing pins of MOTG via gen4-PA
UMI
gen4-PA
Pin
Symbol
Symbol
1
3.3V
NA
2
GND
GND
3
TX
GPIO1 (PA3)
4
RX
GPIO2 (PA2)
5
GPIO5
GPIO8 (PA6)
6
GPIO4
GPIO9 (PA5)
7
GPIO3
GPIO10 (PA4)
8
GPIO2
GPIO3 (PA1)
9
GPIO1
GPIO4 (PA0)
10
SCL
GPIO5 (PA9)
11
SDA
GPIO11 (PA10)
12
SCK
GPIO14 (PA13)
13
MISO
GPIO12 (PA11)
14
MOSI
GPIO13 (PA12)
15
GND
GND
16
5.0V
+5V
MOTG – Module On The Go
MOTG Page 53 of 73 www.4dsystems.com.au
6.5. Mechanical Views
MOTG – Module On The Go
MOTG Page 54 of 73 www.4dsystems.com.au
6.6. Schematic Details
MOTG – Modules On The Go
MOTG Page 55 of 73 www.4dsystems.com.au
6.7. Hardware Revision History
6.8. Datasheet Revision History
End of MOTG-AC1 Datasheet
Revision
Number
Date
Description
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 56 of 73 www.4dsystems.com.au
7. gen4–MOTG–AC2
7.1. Description
The gen4-MOTG-AC2 Interface Board allows easy
interface of a MOTG module to Diablo16-based gen4
display modules. The board carries two UMI-
compatible MOTG slots which act as an extension to
the display module providing plug-and-play interface
with MOTG.
The interface board is designed to sit flush on the back
of the Diablo16 3.2” and 3.5” display modules enabling
sleek and compact designs. It also features a 30 pin ZIF
socket, for easy connection to application boards for a
further functionality advancement.
7.2. Hardware Overview
7.3. Pin Description
7.3.1 MOTG Slot #1 Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
TX
Asynchronous Serial Receive Pin
connected to PA3 of gen4 Display
Module
4
RX
Asynchronous Serial Transmit Pin
connected to PA2 of the gen4
Display Module
5
GPIO5
General Purpose Input Output Pin
connected to PA6 of the Display.
6
GPIO4
General Purpose Input Output Pin
connected to PA5 of the Display.
7
GPIO3
General Purpose Input Output Pin
connected to PA4 of the Display.
8
GPIO2
General Purpose Input Output Pin
connected to PA1 of the Display.
9
GPIO1
General Purpose Input Output Pin
connected to PA0 of the Display.
10
SCL
I2C Clock Pin connected to PA9 of
the gen4 Display Module
11
SDA
I2C Data Pin connected to PA10 of
the gen4 Display Module
12
SCK
SPI Clock Pin connected to PA13
of the Display
13
MISO
SPI Master In Slave Out Pin
connected to PA11 of the Display
14
MOSI
SPI Master Out Slave In Pin
connected to PA12 of the Display
15
GND
Supply Ground
16
5.0V
5V Input Supply
Pads for External
Power Supply
MOTG Slot #1
MOTG Slot #2
FPC for gen4
Display Module
Audio Speaker
FPC for User I/O and
gen4 Programming
Pins for the UMI
of the MOTG
Space to access
the uSD card of
the gen4 Display
Module
MOTG – Modules On The Go
MOTG Page 57 of 73 www.4dsystems.com.au
7.3.2 MOTG Slot #2 Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
TX
Asynchronous Serial Receive Pin
connected to PA3 of gen4 Display
Module
4
RX
Asynchronous Serial Transmit Pin
connected to PA2 of the gen4
Display Module
5
GPIO5
General Purpose Input Output Pin
connected to PA14 of the Display.
6
GPIO4
General Purpose Input Output Pin
connected to PA8 of the Display.
7
GPIO3
General Purpose Input Output Pin
connected to PA7 of the Display.
8
GPIO2
General Purpose Input Output Pin
connected to PA1 of the Display.
9
GPIO1
General Purpose Input Output Pin
connected to PA0 of the Display.
10
SCL
I2C Clock Pin connected to PA9 of
the gen4 Display Module
11
SDA
I2C Data Pin connected to PA10 of
the gen4 Display Module
12
SCK
SPI Clock Pin connected to PA13
of the Display
13
MISO
SPI Master In Slave Out Pin
connected to PA11 of the Display
14
MOSI
SPI Master Out Slave In Pin
connected to PA12 of the Display
15
GND
Supply Ground
16
5.0V
5V Input Supply
7.4. Communication
Both slots of the gen4-MOTG-AC2 facilitate
communication between the display module and the
MOTG modules using UART, SPI or I2C communication
protocol. Below are a few tips that might be useful
when using 2 MOTG modules with the same
communication protocol.
7.4.1 UART
TX (Pin3) and RX (Pin4) of the UMI enable UART
communication. However, UART pins for both slots are
connected to the same pins of the display modules as
shown in section 7.3.
For all MOTG modules requiring UART
communication, the hardware is designed to allow the
UART pins to be connected to either TX, RX or GPIO1,
GPIO2 of the UMI. This is could be achieved by
shorting the respective sides of the solder bridges.
Hence, one of the MOTGs could use the GPIO1 and
GPIO2 pins, while the other could use the TX and RX
pins, making serial communication with both MOTG
possible.
7.4.2 SPI
SCK (Pin12), MISO (Pin13) and MOSI (Pin14) of the UMI
permit SPI communication. The SPI communication
pins of both slots are connected to the SPI pins of the
gen4 display module. The slave- or chip-select pins
could then be utilised by the display module to
communicate to a specific MOTG module.
7.4.3 I2C
SCL (Pin10) and SDA (Pin11) of the UMI are responsible
for I2C communication. The I2C communication pins
of both slots are connected to the I2C pins of the gen4
display module. The host could then select the desired
MOTG module by using the correct slave address.
MOTG – Modules On The Go
MOTG Page 58 of 73 www.4dsystems.com.au
7.5. Accessing MOTG pins via gen4-PA
UMI (MOTG Slot 1)
gen4-PA
Pin
Symbol
Symbol
1
3.3V
NA
2
GND
GND
3
TX
GPIO1 (PA3)
4
RX
GPIO2 (PA2)
5
GPIO5
GPIO8 (PA6)
6
GPIO4
GPIO9 (PA5)
7
GPIO3
GPIO10 (PA4)
8
GPIO2
GPIO3 (PA1)
9
GPIO1
GPIO4 (PA0)
10
SCL
GPIO5 (PA9)
11
SDA
GPIO11 (PA10)
12
SCK
GPIO14 (PA13)
13
MISO
GPIO12 (PA11)
14
MOSI
GPIO13 (PA12)
15
GND
GND
16
5.0V
+5V
UMI (MOTG Slot 2)
gen4-PA
Pin
Symbol
Symbol
1
3.3V
NA
2
GND
GND
3
TX
GPIO1 (PA3)
4
RX
GPIO2 (PA2)
5
GPIO5
GPIO15 (PA14)
6
GPIO4
GPIO6 (PA8)
7
GPIO3
GPIO7 (PA7)
8
GPIO2
GPIO3 (PA1)
9
GPIO1
GPIO4 (PA0)
10
SCL
GPIO5 (PA9)
11
SDA
GPIO11 (PA10)
12
SCK
GPIO14 (PA13)
13
MISO
GPIO12 (PA11)
14
MOSI
GPIO13 (PA12)
15
GND
GND
16
5.0V
+5V
MOTG – Module On The Go
MOTG Page 59 of 73 www.4dsystems.com.au
7.6. Mechanical Views
MOTG – Module On The Go
MOTG Page 60 of 73 www.4dsystems.com.au
7.7. Schematic Details
MOTG – Modules On The Go
MOTG Page 61 of 73 www.4dsystems.com.au
7.8. Specifications
RECOMMENDED CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage
--
5.0
--
V
Supply Current
12.0
--
1500
mA
Operating Temperature
-20.0
--
70.0
°C
Storage Temperature
-65.0
--
150.0
Audio Pin (PWM)
AUDIO-OUT (Pin 19 FPC)
--
3.3
--
v
Input Low Voltage (VIL)
AUDENB (Pin 20 FPC)
--
--
0.5
V
Input High Voltage (VIH)
AUDENB (Pin 20 FPC)
1.15
--
--
V
MOTG – Modules On The Go
MOTG Page 62 of 73 www.4dsystems.com.au
7.9. Hardware Revision History
7.10. Datasheet Revision History
End of gen4-MOTG-AC2 Datasheet
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 63 of 73 www.4dsystems.com.au
8. gen4–MOTG–AC3
8.1. Description
The gen4-MOTG-AC3 Interface Board allows easy
interface of a MOTG module to Picaso-based gen4
display modules. The board carries one UMI-
compatible MOTG slot which acts as an extension to
the display module providing plug-and-play interface
with MOTG.
The interface board is designed to sit flush on the back
of the Picaso 2.4” to 3.2” display modules enabling
sleek and compact designs. It also features a 30 pin ZIF
socket, for easy connection to application boards for a
further functionality advancement.
8.2. Hardware Overview
8.3. Pin Description
Pin
Symbol
Description
1
3.3V
3.3V Input Supply
2
GND
Supply Ground
3
TX
Asynchronous Serial Receive Pin
connected to TX1 of gen4 Display
Module
4
RX
Asynchronous Serial Transmit Pin
connected to RX1 of the gen4
Display Module
5
GPIO5
General Purpose Input Output Pin
connected to IO5 of the Display.
6
GPIO4
General Purpose Input Output Pin
connected to IO4 of the Display.
7
GPIO3
General Purpose Input Output Pin
connected to IO3 of the Display.
8
GPIO2
General Purpose Input Output Pin
connected to IO2 of the Display.
9
GPIO1
General Purpose Input Output Pin
connected to IO1 of the Display.
10
SCL
I2C Clock Pin connected to SCL of
the gen4 Display Module
11
SDA
I2C Data Pin connected to SDA of
the gen4 Display Module
12
N/C
No Connect
13
N/C
No Connect
14
N/C
No Connect
15
GND
Supply Ground
16
5.0V
5V Input Supply
Pads for External
Power Supply
FPC for gen4 Display
Module
Pins for the UMI
of the MOTG
MOTG Slot
Space to access the
uSD card of the gen4
Display Module
FPC for User I/O and
gen4 Programming
MOTG – Modules On The Go
MOTG Page 64 of 73 www.4dsystems.com.au
8.4. Accessing pins of MOTG via gen4-PA
UMI
gen4-PA
Pin
Symbol
Symbol
1
3.3V
NA
2
GND
GND
3
TX
GPIO15 (TX1)
4
RX
GPIO14 (RX1)
5
GPIO5
GPIO13 (IO5)
6
GPIO4
GPIO4 (IO4)
7
GPIO3
GPIO3 (IO3)
8
GPIO2
GPIO2 (IO2)
9
GPIO1
GPIO1 (IO1)
10
SCL
GPIO16 (SCL)
11
SDA
GPIO17 (SDA)
12
N/C
NA
13
N/C
NA
14
N/C
NA
15
GND
GND
16
5.0V
+5V
MOTG – Module On The Go
MOTG Page 65 of 73 www.4dsystems.com.au
8.5. Mechanical Views
MOTG – Module On The Go
MOTG Page 66 of 73 www.4dsystems.com.au
8.6. Schematic Details
MOTG – Modules On The Go
MOTG Page 67 of 73 www.4dsystems.com.au
8.7. Specifications
RECOMMENDED CONDITIONS
Parameter
Min
Typ
Max
Units
Supply Voltage
--
5.0
--
V
Supply Current
10.0
--
1000
mA
Operating Temperature
-20.0
--
70.0
°C
Storage Temperature
-65.0
--
150.0
°C
MOTG – Modules On The Go
MOTG Page 68 of 73 www.4dsystems.com.au
8.8. Hardware Revision History
8.9. Datasheet Revision History
End of gen4-MOTG-AC3 Datasheet
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 69 of 73 www.4dsystems.com.au
9. MOTG-BREADTOOTH
9.1. Description
The MOTG-BREADTOOTH breaks out the UMI pins of
the MOTG. It is compatible with all MOTG modules
and is a quick and easy way to make your MOTG
module breadboard-friendly. The MOTG-
BREADTOOTH permits the MOTG to be interfaced to a
breadboard for prototyping and for interfacing to
virtually any host.
9.2. Hardware Overview
9.3. Pin Description
Pin
Symbol
Description
1
GND
Supply Ground connected to GND
of the UMI
2
3.3V
3.3V Input Supply connected to
3.3V of the UMI
3
RX
Asynchronous Serial Transmit Pin
connected to RX of UMI
4
TX
Asynchronous Serial Receive Pin
connected to RX of UMI
5
IO5
General Purpose Input Output Pin
connected to GPIO5 of the UMI
6
IO4
General Purpose Input Output Pin
connected to GPIO4 of the UMI
7
IO3
General Purpose Input Output Pin
connected to GPIO3 of the UMI
8
IO2
General Purpose Input Output Pin
connected to GPIO2 of the UMI
9
IO1
General Purpose Input Output Pin
connected to GPIO1 of the UMI
10
SCL
I2C Clock Pin connected to SCL of
the UMI
11
SDA
I2C Data Pin connected to SDA of
UMI
12
SCK
SPI Clock Pin connected to SCK of
the UMI
13
MISO
SPI Master In Slave Out Pin
connected to MISO of the UMI
14
MOSI
SPI Master Out Slave In Pin
connected to MOSI of the UMI
15
5.0V
5V Input Supply
16
GND
Supply Ground
Pins for the UMI of the MOTG
MOTG slot
Breadboard friendly UMI pins
MOTG – Module On The Go
MOTG Page 70 of 73 www.4dsystems.com.au
9.4. Mechanical Views
MOTG – Module On The Go
MOTG Page 71 of 73 www.4dsystems.com.au
9.5. Schematic Details
MOTG – Modules On The Go
MOTG Page 72 of 73 www.4dsystems.com.au
9.6. Hardware Revision History
9.7. Datasheet Revision History
End of MOTG-BREADTOOTH Datasheet
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
Revision
Number
Date
Description
1.1
16/11/2016
Initial Public Release version
MOTG – Modules On The Go
MOTG Page 73 of 73 www.4dsystems.com.au
10. Legal Notice
Proprietary Information
The information contained in this document is the property of 4D Systems Pty. Ltd. and may be the subject of patents
pending or granted, and must not be copied or disclosed without prior written permission.
4D Systems endeavours to ensure that the information in this document is correct and fairly stated but does not
accept liability for any error or omission. The development of 4D Systems products and services is continuous and
published information may not be up to date. It is important to check the current position with 4D Systems. 4D
Systems reserves the right to modify, update or makes changes to Specifications or written material without prior
notice at any time.
All trademarks belong to their respective owners and are recognised and acknowledged.
Disclaimer of Warranties & Limitation of Liability
4D Systems makes no warranty, either expressed or implied with respect to any product, and specifically disclaims all
other warranties, including, without limitation, warranties for merchantability, non-infringement and fitness for any
particular purpose.
Information contained in this publication regarding device applications and the like is provided only for your
convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with
your specifications.
Images and graphics used throughout this document are for illustrative purposes only. All images and graphics used
are possible to be displayed on the 4D Systems range of products, however the quality may vary.
In no event shall 4D Systems be liable to the buyer or to any third party for any indirect, incidental, special,
consequential, punitive or exemplary damages (including without limitation lost profits, lost savings, or loss of
business opportunity) arising out of or relating to any product or service provided or to be provided by 4D Systems,
or the use or inability to use the same, even if 4D Systems has been advised of the possibility of such damages.
4D Systems products are not fault tolerant nor designed, manufactured or intended for use or resale as on line control
equipment in hazardous environments requiring fail – safe performance, such as in the operation of nuclear facilities,
aircraft navigation or communication systems, air traffic control, direct life support machines or weapons systems in
which the failure of the product could lead directly to death, personal injury or severe physical or environmental
damage (‘High Risk Activities’). 4D Systems and its suppliers specifically disclaim any expressed or implied warranty
of fitness for High Risk Activities.
Use of 4D Systems’ products and devices in 'High Risk Activities' and in any other application is entirely at the buyer’s
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or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any 4D Systems
intellectual property rights.
11. Contact Information
For Technical Support: www.4dsystems.com.au/support
For Sales Support: sales@4dsystems.com.au
Website: www.4dsystems.com.au
Copyright 4D Systems Pty. Ltd. 2000-2019.